1. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Use the Quadratic Formula and the Discriminant (Section 4-8)

2. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. + – ax 2 + bx + c Quadratic Formula: “a” is the number in front of ______. “b” is the number in front of ______. “c” is the _______________________.

3. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Use the quadratic formula to solve the equation. Example 1

4. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Use the quadratic formula to solve the equation. Example 2

5. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Use the quadratic formula to solve the equation. Example 3

6. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Use the quadratic formula to solve the equation. Example 4

7. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Use the quadratic formula to solve the equation. Example 5

8. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Use the quadratic formula to solve the equation. Example 6

9. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. The Discriminant The part under the radical sign of the quadratic formula is called the discriminant. By calculating the discriminant, you can determine how many and what type of solutions an equation will have.

10. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant.

11. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Find the discriminant of the quadratic equation and give the number and type of solutions of the equation. Example 7

12. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Find the discriminant of the quadratic equation and give the number and type of solutions of the equation. Example 8

13. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Find the discriminant of the quadratic equation and give the number and type of solutions of the equation. Example 9

14. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Find the discriminant of the quadratic equation and give the number and type of solutions of the equation. Example 10

15. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Find the discriminant of the quadratic equation and give the number and type of solutions of the equation. Example 11

16. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. Find the discriminant of the quadratic equation and give the number and type of solutions of the equation. Example 12

17. Essential Question: How do you use the quadratic formula and the discriminant? Students will write a summary including the steps for using the quadratic formula and how it applies to the discriminant. HW #____ Practice 4-8 (1-____)